Table 11.

Epoch-by-epoch (EBE) agreement: rapid eye movement (REM) sleep epochs

Device	Sensitivity	Specificity	PPV	NPV	Accuracy	PABAK
Fitbit Alta HR	0.69	0.94	0.77	0.91	0.89	0.77
Garmin Fenix 5S	0.54	0.84	0.51	0.86	0.77	0.53
Garmin Vivosmart 3	0.50	0.82	0.46	0.84	0.75	0.48
EarlySense Live	0.64	0.89	0.62	0.90	0.84	0.67
ResMed S+	0.50	0.95	0.71	0.87	0.85	0.69
SleepScore Max	0.49	0.95	0.74	0.86	0.84	0.68

Proportions for EBE agreement metrics are shown for REM sleep epochs (versus the combination of all other classifications—wake, light, and deep) on all nights, compared with the corresponding polysomnography (PSG) epochs. Results are shown for all devices that output sleep stage classifications. See Table 8 caption for additional table details.